Even if you don't have a ticket to the Final Four matchup this weekend, there are plenty of ways — many of them free — to be part of the action. Here's a roundup of what's going on and how to participate. And if you really have your heart set on attending the championship game next Monday, we offer some tips on how to snag a ticket without paying premium prices.

Most activities are taking place in downtown Houston or at NRG Park. Since METRORail links the two, officials are encouraging participants in any and all Final Four activities to take public transit and avoid traffic hassles. METRO is offering special commemorative four-day pass for $12. Parking garages are available in downtown, Midtown and other locations along the route if you need to drive to be closer to METRORail.

What: Always one of the most popular attractions of the Final Four, this interactive sports "extravaganza" includes basketball courts for exhibitions and fan games, autograph signings with former NCAA players, coaches and sports personalities, giveaways, opportunities to snap photos with the championship trophy, and free samples from NCAA sponsors.

What: It's the best chance to see the Final Four teams up close as they practice on the court where the games will take place. Between noon and 4 pm, teams from Villanova, Oklahoma, Syracuse, and North Carolina each take the court for about an hour, capped by The Reese's College All-Star Game at 4:30 pm. Here's the lineup:

What: The two remaining teams fight it out for the 2016 NCAA men's basketball championship.

Admission: If you really have your heart set on Monday's final game and don't have a ticket, don't give up. Half of those attending Saturday's Final Four doubleheader are going to be disappointed when their team loses and many won't plan to stay for Monday's game. So expect the secondary market online to be flooded with available seats (unless Oklahoma wins, in which case demand for tickets will skyrocket, says the owner of one ticket agency). Check out websites like Primesport (the NCAA-approved resale site), Flash Seats, StubHub, SeatGeek, Vividseats and Ticket Experience — the closer to Monday's tip-off the better, as prices are bound to come down as the game approaches.

And, although officials warn not to buy from someone selling tickets on the street as they may be counterfeit, if you want to take a chance, look for dejected fans in the losing team's gear after Saturday's games and make an offer. You might end up in a prime seat, as many of those fans sit in their team's cheering section close to the court.